Home / 40,885.04-61,336.40-12,419.66

Finding the Fourth Proportional to 40,885.04, 61,336.40 and 12,419.66

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Solution

The fourth proportional to 40,885.04, 61,336.40 and 12,419.66 is: 18,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,885.04 : 61,336.40 = 12,419.66 : x
  2. Step 2: Convert to fraction form
    40,885.04/61,336.40 = 12,419.66/x
  3. Step 3: Cross multiply
    40,885.04x = 61,336.40 × 12,419.66
  4. Step 4: Simplify right side
    40,885.04x = 761,777,233.62
  5. Step 5: Solve for x
    x = 761,777,233.62/40,885.04
  6. Step 6: Final answer
    x = 18,632.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.